How many cores does a server with 5000 cameras need?

2 cores.

A server with 5000 cameras should have a bandwidth of 100 megabytes, and a pure operating database is estimated to need 64GB of memory and 2 cores.

Camera or webcam, also known as computer camera, computer eye, electronic eye, etc. , a video input device, is widely used in video conferencing, telemedicine and real-time monitoring.